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Bond :: Bond (n.) A unit of chemical attraction; as, oxygen has two bonds of affinity. It is often represented in graphic formulae by a short line or dash. See Diagram of Benzene nucleus, and Valence..

Nucleus :: Nucleus (n.) The tip, or earliest part, of a univalve or bivalve shell..

Nucleus :: Nucleus (n.) The body or the head of a comet.

Gymnocytode :: Gymnocytode (n.) A cytode without either a cell wall or a nucleus.

Phosphonium :: Phosphonium (n.) The hypothetical radical PH4, analogous to ammonium, and regarded as the nucleus of certain derivatives of phosphine..

Nucleate :: Nucleate (v. t.) To gather, as about a nucleus or center..

Endoblast :: Endoblast (n.) Entoblast; endoplast. See Nucleus,.

Blastide :: Blastide (n.) A small, clear space in the segments of the ovum, the precursor of the nucleus..

Paranucleus :: Paranucleus (n.) Some as Nucleolus.

Uninucleated :: Uninucleated (a.) Possessed of but a single nucleus; as, a uninucleated cell..

Ovule :: Ovule (n.) The rudiment of a seed. It grows from a placenta, and consists of a soft nucleus within two delicate coatings. The attached base of the ovule is the hilum, the coatings are united with the nucleus at the chalaza, and their minute orifice is the foramen..

Nucleolated :: Nucleolated (a.) Having a nucleole, or second inner nucleus..

Sulphophosphate :: Sulphonium (n.) A hypothetical radical, SH3, regarded as the type and nucleus of the sulphines..

Nucleoplasmic :: Nucleoplasmic (a.) Of or pertaining to nucleoplasm; -- esp. applied to a body formed in the developing ovum from the plasma of the nucleus of the germinal vesicle.

Cytoplasm :: Cytoplasm (n.) The substance of the body of a cell, as distinguished from the karyoplasma, or substance of the nucleus..

Enchylemma :: Enchylemma (n.) The basal substance of the cell nucleus; a hyaline or granular substance, more or less fluid during life, in which the other parts of the nucleus are imbedded..

Nucleus :: Nucleus (n.) A body, usually spheroidal, in a cell or a protozoan, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may be suspended a second rounded body, the nucleolus (see Nucleoplasm). See Cell division, under Division..

Karyostenosis :: Karyostenosis (n.) Direct cell division (in which there is first a simple division of the nucleus, without any changes in its structure, followed by division of the protoplasm of the karyostenotic mode of nuclear division..

Thiophthene :: Thiophthene (n.) A double thiophene nucleus, C6H4S2, analogous to thionaphthene, and the base of a large series of compounds..

Nucleate :: Nucleate (a.) Having a nucleus; nucleated.

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